Saw-bench structure.



' W. R. FOX & E. W. CLEVELAND.

SAW BENCH STRUCTURE.

APPLICATION FILED AUG.26, 19I2.

1,139,659.. 7 Patented May 18, 1915.

4 SHEETSSHEET 1' W. R. FOX & E. W. CLEVELAND.

SAW BENCH STRUCTURE.

APPLICATION FILED AUG-26,1912.

1,1 39,659. Patented- May 18, 1915.

4 SHEETS-SHEET 2.

Kim/,6" 25 3% g QM W. R. FOX 64 E. W. CLEVELAND.

SAW BENCH STRUCTURE.

APPLICATION FILED AUG.26. 1912.

Patented May 18, 1915.

4 SHEETS--SHEET 3.

(ii-Mam W. W I 3 1 W. R. FOX & E. W. CLEVELAND SAW BENCH STRUCTURE. APPLICATION FILED Aue.26.1912.

Patented May18, 1915.

4 SHEETSSHEET 4.

WILLIAM R FOX AND EDGAR W. CLEVELAND, F GRAND RAPIDS, MICHIGAN; SAID CLEVELAND ASSIGNOB-TO SAID FOX. 1

SAW-BENCH STRUCTURE.

Application filed August 26, 1912. Serial No. 717,124.

To all whom it may concern:

Be it known that we, WI LIAM R. Fox and EDGAR WLGLEVEHANDfCIfiZBIIS of the United States, residing at Grand Rapids, Michigam'have invented certain new and 1 useful Improvements in Saw-Bench Structures, of which the following is a specification.

- This invention relates to improvements in circular saw driving'means especially adapted to direct electric motor drive.

The invention relates particularly to such saws having a plurality of arbors yoked together and suitably'supported in a frame so that the different sa'ws may be successively brought into the working position as desired by'suitable adjustment.

The'objects of the invention are: First, to I tails and economies of construction and op-.

eration will definitely appear from the de-' tailed description to follow. I

We accomplish the objects of our invention by the mecharfismf described in the followingspecificatibn. V

The invention is clearly defined and pointed out in the claim. Q

A structure constituting a preferred embodiment of our invention is clearly .illus-' trated in the accompanying drawing, form'- ing a part of this specification, in which:

Figure. is a perspective view of a saw table and circular saw, with our improved electricall driven saws'inposition. FigII is a longitu inal vertical detail sectional view, portions being shown in full line, somewhat enlarged of the structure appearing in Fi I, the same being taken on a line correspon V Specification of Letters Patent.

or carrying drum at any desired Patented May 18 1-915.

ing a line 2-2-01 Fig. III. Fig. III is a detail transverse sectional elevation taken on a line corresponding to line 33 of Fig.

II, looking toward theright of the figure. Flg. IV is an enlarged detail longitudinal sectlonal view, through one of the saw arbors when in the upper position, taken on a line corresponding to line 4 -4 of Fig. III. Fig. V is a detail, end elevation view of the end of the yoke carryin drum in lace, from the left end of Fig. showing t e clamp means which secures the same, one clamp being removed: Fig- VI is a detail end elevation view from the right hand end of Figs. I and II, showing details of constructionof the removable drum and the clamp for retaining-the same in place. Fig.

.VII is an enlarged detail sectional view taken on a line corresponding to line 7-7 of Fig. VI, showing details of construction of the clamp means at that end. Fig, VIII is an enlarged detail sectional view taken on a line corresponding to line -88 of Fig. V, showing the details of construction at that end of the removable drum.

In the drawings the sectional'views are taken looking in the direction of the little arrows at the ends of the section lines and similar numerals of reference refer to similar parts throughout the several views.

Considering the numbered parts of the drawing, the saw frame is made up of the main frame or casting 1, on which is di sposed any suitable saw table 2, an adjustable and tilting table being preferred. I A shelf, 3 is disposed at one end of the main frame 1 and carries an electric motor 4, which is connected to drive .the shaft 5 by A direct connection. .The shaft-:5 is supported in bearings 6 and 8, which are centrally disposed in the end walls 7 and 9, respectively, of the adjustable yoke drum. This yoke drum is cylindrical at each end, being made up of -.two end parts 10 and 12, suitably joined together by flanges 20 through which are disposed the bolts 21. These ends 10 and 12 are cylinders machined to true at'the endsand fit in circular bearings 11 and 13, re-

spectively;'in the main casing, as clearly appears in Fig. 1-1. a

The end 12 of the drum is provided with worm gear 14, with which meshes a worm 15 carried by shaft 16, which-shaft is supported in bearings 17 and 18, and is controlled by a hand wheel 19 at a. convenient gear meshes with a small gear ,or pinion 23 made up of symmetrical halves secured together by bolts 23.

A pair of saw arbors 25 are provided, and as these arbors and their associated parts are thesame we will describe only one of them. The gear 23 is secured by keys 24-24 in suitable keyways in the arbor 25, whereby the gears 23 are free to move longitudinally to a slight extent upon the said arbor 25.

The arbor25 is supported on suitable 'ball bearings 26 27 at each end, the outer of the races of each of which is slightly movable longitudinally in its support to permit ad justment of the said arbor, suitable recesses being formed in the ends 7 and 9 of the yoke carrying drum for this .purpose. The saw end of the arbor is shouldered at 28 to receive the inner ball race at that end, which is clamped in place by the threaded collar 29 which is locked in place by the locking pin '30. The outer end of this collar is faced and against it are clamped the saw flanges 48 by the nut 49 at the outer end of the arbor, the saw 47 being clamped between the flanges. A retaining plate-32, journaled on the collar 29, is retained in position on the yoke by cap screws 33, oil retaining grooves being provided in the journal of this part.

The opposite end -of the arbor is supported on ball bearings 27, as indicated. The outer ball race isgmovable in its support and the inner ball race is clamped to the shoulder 34 of the arbor by the nut 35, which is locked in place by the pin 36. A plate 37, retained in place by the screw 38, is journaled on the arbor 25 and assists in guiding and supporting the same. An oil chamber 39 is beyond the end of the arbor 25, in a projecting part of the yoke, which is provided with a cap plate 41 with a window covered by suitable glass 43, to permit inspection sothat the opertaor can know that there is a supply of oil at all times. A gland 44 is under the cap to insure a tight fit, the cap 41 being retained in place by set screws 42. A center oil hole 45 is formed longitudinally of the arbor with cross openings 46 for delivering oil to lubricate ball bearings at the front end ofv the arbor.

The upper portions of the main frame 1 are 'made as light as possible, and are broadened or widened into supporting rims 50 1,1se,cca

and 51 above the adjustable drum, to permit the drum to come as near the top of the table as possible, the casting being made more firm by these additional flanges or exfreely under the edges of their clamps 56 and 58. Projecting plates 54 -54- are secured in place at the left hand end of the frame by cap screws 55-55 and cover the apertures 52 and retain the drum in place. See Figs. V and VIII. A plate 56 is secured in place by the cap screw 57 at the opposite end. SeeFigs. VI and VII.

A clamp 58 is provided for locking. the

drum against rotation after the same has been adjusted. This clamp is pivoted by the pin 60 and is forced into place by the hand screw 59 which is screw threaded into a hole in the side of the casting 1. The bearings for the arbors will be observed to be oil tight, and we have provided an oil plug 61, (see Fig. IV) for introducing oilinto the'same. Also, the yoke drum is oil tight, and we fill a quantity ofoil into the same so that the herring-bone gears 22 will run in oil and consequently run substantially without wear and noiselessly. An oil plug 62, (see Fig. IV) permits the introduction of oil into the drum.

We desire to say that while we have provided herring-bone gears for driving the gears will be quite effective, especially when they are run in. oil, but 'the herring-bone gear is so much better that we have shown it as our preferred. construction. This arrangement and construction. permits the use of direct connected electric motor drive. However, the saw structure and driving means could be driven by a belt and pulley, but as this means is so simple and well known, we have not deemed it necessary to illustrate it. v

Manymodifications of details will be readily devised by those skilled in the art to which this invention pertains, without de parting from the principles thereof. The drum can be variously supported, and might be fitted in to the circular hearing at one end only. I We desire to claim the invention specifically as illustrated, and also to claim the same broadly as pointed out in the appended claim.

arbors, it will be found that straight spur Having thus described our invention, what we claim as new and desire to secure by Letters Patent is: v

In a saw bench structure, the combination of a frame, bearing apertures in said frame,'

a drum journaled in said bearing apertures, said drum being adapted to retain oil, a plurality of saw arbors 'journaled in said drum,"means for rotating said drum, means for retaining said drum in position in said bearing apertures, a central shaft the axis of said drum, means for driving said shaft,

I a gear on said shaft within the said' drum,

WILLIAM R. FOX. [L. 8.] EDGAR CLEVELAND. [11.5.] n -Witnessesa"; i

LENA D. CHURCH, v CLAIRE L. CANFIELD. v 

